Search for Higgs boson pair production in the γγbb¯ final state with 13 TeV pp collision data collected by the ATLAS experiment

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F18%3A00519569" target="_blank" >RIV/68378271:_____/18:00519569 - isvavai.cz</a>

Výsledek na webu

<a href="http://hdl.handle.net/11104/0304565" target="_blank" >http://hdl.handle.net/11104/0304565</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/JHEP11(2018)040" target="_blank" >10.1007/JHEP11(2018)040</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Search for Higgs boson pair production in the γγbb¯ final state with 13 TeV pp collision data collected by the ATLAS experiment

Popis výsledku v původním jazyce

A search is performed for resonant and non-resonant Higgs boson pair production in the upgammaupgammabb¯¯ final state. The data set used corresponds to an integrated luminosity of 36.1 fb−1 of proton-proton collisions at a centre-of-mass energy of 13 TeV recorded by the ATLAS detector at the CERN Large Hadron Collider. No significant excess relative to the Standard Model expectation is observed. The observed limit on the non-resonant Higgs boson pair cross-section is 0.73 pb at 95% confidence level. This observed limit is equivalent to 22 times the predicted Standard Model cross-section. The Higgs boson self-coupling (κλ = λHHH/λSMHHH ) is constrained at 95% confidence level to −8.2< κλ<13.2. For resonant Higgs boson pair production through X→HH→upgammaupgammabb¯¯ , the limit is presented, using the narrow-width approximation, as a function of mX in the range 260 GeV<mX<1000 GeV. The observed limits range from 1.1 pb to 0.12 pb over this mass rangen

Název v anglickém jazyce

Search for Higgs boson pair production in the γγbb¯ final state with 13 TeV pp collision data collected by the ATLAS experiment

Popis výsledku anglicky

A search is performed for resonant and non-resonant Higgs boson pair production in the upgammaupgammabb¯¯ final state. The data set used corresponds to an integrated luminosity of 36.1 fb−1 of proton-proton collisions at a centre-of-mass energy of 13 TeV recorded by the ATLAS detector at the CERN Large Hadron Collider. No significant excess relative to the Standard Model expectation is observed. The observed limit on the non-resonant Higgs boson pair cross-section is 0.73 pb at 95% confidence level. This observed limit is equivalent to 22 times the predicted Standard Model cross-section. The Higgs boson self-coupling (κλ = λHHH/λSMHHH ) is constrained at 95% confidence level to −8.2< κλ<13.2. For resonant Higgs boson pair production through X→HH→upgammaupgammabb¯¯ , the limit is presented, using the narrow-width approximation, as a function of mX in the range 260 GeV<mX<1000 GeV. The observed limits range from 1.1 pb to 0.12 pb over this mass rangen

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10303 - Particles and field physics

Projekt

<a href="/cs/project/LM2015058" target="_blank" >LM2015058: Výzkumná infrastruktura pro experimenty v CERN</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2018

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Journal of High Energy Physics

ISSN

1029-8479

e-ISSN

—

Svazek periodika

2018

Číslo periodika v rámci svazku

11

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

44

Strana od-do

1-44

Kód UT WoS článku

000449993600001

EID výsledku v databázi Scopus

2-s2.0-85056319024